Finding the Fourth Proportional to 146,036.60, 201,530.72 and 78,968.60

Step by Step Solution

1. Step 1: Write the proportion equation
   146,036.60 : 201,530.72 = 78,968.60 : x
2. Step 2: Convert to fraction form
   146,036.60/201,530.72 = 78,968.60/x
3. Step 3: Cross multiply
   146,036.60x = 201,530.72 × 78,968.60
4. Step 4: Simplify right side
   146,036.60x = 15,914,598,815.39
5. Step 5: Solve for x
   x = 15,914,598,815.39/146,036.60
6. Step 6: Final answer
   x = 108,976.78